Update stubs

Author: phpstan-bot

stubs/ext/mbstring/mb_get_info.php

@@ -3,6 +3,15 @@
 /**
  * @refcount 1
  */
+#[\Until('8.2')]
 function mb_get_info(string $type = "all"): array|string|int|false
 {
+}
+/**
+ * @return array<int|string, int|string|array>|string|int|false|null
+ * @refcount 1
+ */
+#[\Since('8.2')]
+function mb_get_info(string $type = "all"): array|string|int|false|null
+{
 }